Begin with the meaning
Feather is a trade term for a break in a gemstone, often with a feather-like appearance. In a diamond description, the word should prompt a question about the individual characteristic rather than an immediate conclusion about the whole ring. When comparing diamond rings, ask where the feather is and how it has been assessed in that particular stone.
Separate appearance from assessment
A magnified photograph can make a feature look dominant without establishing its significance at normal viewing distance. Equally, not noticing it in a photograph cannot establish that it has no practical implications. Ask a qualified professional to explain the feature's size, position and relationship to the surface. An online diagram cannot replace an examination of the actual diamond.
Discuss the setting with the stone
If considering a new mounting or alteration, ensure the person assessing the work has the relevant stone information. The proposed setting and individual diamond need to be considered together. Do not investigate a surface-reaching feature with a sharp tool or attempt to move a prong to obtain a clearer view beneath it. Preserve the piece for assessment.
Record a specific answer
Keep the report and written assessment with the purchase information. After a later impact or visible change, describe the event and request a fresh examination rather than assuming the older document explains current condition. CIELA product facts should relate to the selected diamond; a general feather illustration does not identify a feature in another stone or predict its behaviour.
Further reading: GIA.
